"There is no one around who knows more about hallucinations than Ronald K. Siegel, and I am delighted that, in Fire in the Brain, he has now given us richly human narratives of all the varieties of hallucinatory experience -- from the hallucinations induced by neurological conditions, sleep deprivation, and drugs, to the imaginary companions of childhood. These 'clinical tales' are extremely vivid and moving and compelling, and I think they show the ecology of hallucination as a purely experimental (or phenomenological) work cannot. Dr. Siegel has written an intensely interesting and worthwhile book -- I know of no other quite like it."-- Oliver Sacks, author of Awakenings and The Man Who Mistook His Wife for a Hat